give timeline for Data.Functor.Constant removal

Author: L0neGamer

Control/Applicative/Lift.hs

@@ -148,8 +148,8 @@ elimLift _ g (Other e) = g e
 -- "Control.Monad.Trans.Except", these computations continue after an
 -- error, collecting all the errors.
 --
--- __The use of `Constant` will be replaced by @Data.Functor.Const.Const@ in a__
--- __future version.__ It is recommended to convert to and from the @Either@
+-- __The use of `Constant` will be replaced by @Data.Functor.Const.Const@ in
+-- `transformers-0.7`. It is recommended to convert to and from the @Either@
 -- values using functions in this module, rather than manipulating the
 -- underlying @Lift@ed @Constant@ values directly.
 --

Data/Functor/Constant.hs

@@ -18,7 +18,7 @@
 -- The constant functor.
 -----------------------------------------------------------------------------
 
-module Data.Functor.Constant {-# DEPRECATED "Use Data.Functor.Const" #-} (
+module Data.Functor.Constant {-# DEPRECATED "Use Data.Functor.Const; will be removed in transformers 0.7" #-} (
     Constant(..),
   ) where